I want to buy a Swiss watch. The seller says the watch is genuine, even showing me the box and paperwork. But counterfeits can also come with copies of the certificates. I'm afraid I'll pay a large sum and then realize I bought a fake. I heard there are special services that can verify the authenticity of watches.

I recommend contacting a professional service. They perform a full authenticity check, that is, a check of the watch's authenticity. An expert opens the case, examines the movement, checks the serial number, components, and engravings. This is important because a counterfeit can be very high-quality, and it's almost impossible to tell it apart from the outside. The best solution is to contact a reputable service whose specialists have been working for years. I used services watches Expertyco. They use modern equipment and only genuine parts. Their craftsmen have over 10 years of experience, and everything is as transparent as possible. After the check, they provide official confirmation that the watch is genuine.